Thus there are two cities, one of the wicked, the other of the just, which to endure from the beginning of the human race even to the end of time, which are now intermingled in body, but separated in will, and which, moreover, are to be separated in body also on the day of judgment. For all men who love pride and temporal dominion together with empty vanity and display of presumption, and all spirits who set their affections on such things and seek their own glory by the subjection of man, are bound fast together in one fellowship; and even though they frequently fight one with another for these ends, still they are flung headlong by an equal weight of desire into the same abyss, and are united to one another by the likeness of their ways and deserts. And again, all men and all spirits who humbly seek God’s glory, not their own, and who follow Him in godliness, belong to one fellowship. And yet God is most merciful and long-suffering toward ungodly men, and offers them room for repentance and amendment.
Augustine, Catechetical